"Article I, Section 10, Clause 3: No State shall, without the Consent of Congress, lay any Duty of Tonnage, keep Troops, or Ships of War in time of Peace, enter into any Agreement or Compact with another State [emphases added], or with a foreign Power, or engage in War, unless actually invaded, or in such imminent Danger as will not admit of delay."
yeah we may get some movement on this.